Computer Science – The internet and its uses | e-Consult
The internet and its uses (1 questions)
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Here are three possible reasons why a web page might not load, and how they affect the retrieval process:
- DNS Server Issues: If the user's DNS server is unavailable or experiencing problems, the browser will not be able to resolve the domain name to an IP address. The DNS lookup step will fail, and the browser will not be able to connect to the web server. The retrieval process will stop at the DNS stage.
- Network Connectivity Problems: If the user's device has no internet connection or the connection is unstable, the TCP connection will fail. The browser will not be able to establish a connection with the web server, and the HTTP request will not be sent. The retrieval process will be blocked at the TCP connection stage.
- Web Server Issues: If the web server is down, overloaded, or experiencing technical problems, it will not be able to respond to the HTTP request. The browser will receive an error message (e.g., "Server not found") and the page will not load. The retrieval process will be blocked at the server response stage.